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Old 05-28-2012, 10:14 AM   #1
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Question 2004 GMC Sierra Transmition Problems

Hello all very new to this forum, and have a problem....
The other day i put my truck into park and it stilled rolled, and reverse did not work but drive did???? So i put the truck into 4wd and back to 2w and everything was ok.... Then i went for a drive and it was ok for 10 miles then while driving it just came out of gear into neutral. Had to stop and again 4wd and back and was fine. but noticed that the trans was shifting very strange??? couple hours later and a couple of miles later same thing its like when the trans gets warn it acts up??? what could this be???

Thanks for you input!!
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Old 05-28-2012, 02:21 PM   #2
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You may have a transfer case issue.
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Old 05-28-2012, 05:16 PM   #3
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Or a shifter linkage issue?
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Old 05-29-2012, 08:25 AM   #4
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i agree sgp and there insn't a linkage to the tc unless you have the very base truck not very common. if something was mechanically damaged in the tc allowing it to randomly go into neutral it would do what you are saying.
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Old 05-29-2012, 08:35 AM   #5
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Get a clean drain pan and drop the T case fluid into it so you can if there is any debris in it.
It may require Autotrack II fluid, which is blue.
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Old 05-29-2012, 09:52 AM   #6
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Originally Posted by jwfirebird View Post
i agree sgp and there insn't a linkage to the tc unless you have the very base truck not very common. if something was mechanically damaged in the tc allowing it to randomly go into neutral it would do what you are saying.
I meant to the transmission. Leave it to me not to run with the pack
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Old 02-18-2013, 12:09 PM   #7
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Hello all, so now it'* winter and it been fine fine the other day a bitter cold day and it'* acting up again while I drive and into natural...... Seems like there'* a short somewhere it only acts up when I go for a car wash or bitter cold or drive for a long time..... I need to get it fixed. Been reading and came across an encoder modar problem? Any thoughts?
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